shallow tunnel

A Study of Pre-reinforcing Effect about Mortar-bolt Applied in Top Part of Shallow Tunnel

浅埋隧道地表砂浆锚杆预加固效果研究

Analysis of influence of dismantling temporary supports on preliminary lining of large-span shallow tunnel

浅埋大跨度隧道拆撑对初支安全性影响分析

After shallow loess tunnel excavation, the surface formation sliding trend due to failure of soil, because tensile stress exceeds the tensile strength of soil.

在浅埋黄土隧道施工后隧道上方地层形成滑动趋势面的地表部分，因拉应力超过土体抗拉强度而破坏。

Application of the heterotypic shaped sets of arch in the tunnel entranced hole with small spacing shallow section and bias

异型套拱在隧道洞口小净距浅埋偏压段的应用

Experimental study for the break angle and the breaking up of the shallow tunnel in soil and sand interbed

土砂互层中浅埋隧道破裂角及破坏试验研究

Construction simulation of underground excavation about super-shallow-burial tunnel

超浅埋隧道暗挖施工模拟

The construction method of talus shallow tunnel advanced support large pipe shed

堆积体浅埋隧道超前支护大管棚施工方法

Based on center diagram method and center cross diagram method, Center drift excavation method is developed as a new construction method for the large-scale shallow tunnel engineering after side drift excavation method and PBA method.

北京地铁施工中所采用的中洞法是以CD、CRD法为基础，继侧洞法和柱洞法（PBA工法）之后发展起来的一种开挖大型浅埋暗挖地下洞室的新工法。

During the construction of tunnel, FLAC numerical simulation is used to analyse the stability of shallow tunnel under unsymmetrical pressure for safe control.

对于隧道施工过程的安全控制，采用FLAC进行数值模拟分析浅埋偏压隧道稳定性。